A blasting drill
By designing a blasting drilling device with a central shaft rotation connection and a multi-point support structure, the problems of traditional devices being unable to meet complex drilling requirements and drilling deviation caused by uneven ground were solved. This enabled three-dimensional angle adjustment of the drilling machine and base stability, improving the accuracy and safety of blasting operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA ANENG GRP FIRST ENG BUREAU CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional blasting drilling equipment is difficult to meet the requirements of complex drilling such as non-vertical holes and inclined holes. Furthermore, uneven ground can cause the drilling to deviate, affecting blasting accuracy and posing safety hazards.
A blasting drilling device comprising a base, a bracket, a hydraulic cylinder, and a support mechanism was designed. Through a central shaft rotation connection, hydraulic cylinder drive, and a multi-point support structure, the three-dimensional angle adjustment of the drilling machine and the stable support of the base are realized, adapting to complex terrain.
It enables the drilling machine to adjust its angle in three-dimensional space, ensuring drilling accuracy, avoiding drilling deviation caused by uneven ground, and improving the safety and accuracy of blasting operations.
Smart Images

Figure CN224532637U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blasting drilling technology, specifically a blasting drilling device. Background Technology
[0002] Blasting is the process of dismantling objects by using explosives. Blasting is generally used in mining, mountain construction, and other projects. Before blasting, holes must be drilled using a drilling device to facilitate the proper placement of explosives.
[0003] Traditional blasting drilling devices are mostly fixed angle or only support adjustment in one direction, which makes it difficult to meet the complex drilling requirements of non-vertical holes, inclined holes, and horizontal holes in blasting projects. In addition, the ground at blasting sites is often uneven, and the traditional device has a simple support structure, which is prone to borehole displacement due to base tilting, affecting blasting accuracy and even causing safety accidents. To address these issues, we have proposed a blasting drilling device to solve the above problems. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a blasting drilling device, which solves the problems mentioned in the background.
[0005] This utility model provides the following technical solution: a blasting drilling device, comprising: a base with a column fixed on its top surface; a bracket rotatably connected to the column via a central shaft, the bracket having a guide rod inside, and the brackets being reinforcedly connected by reinforcing rods; a mounting plate slidably mounted on the guide rod; a drilling machine fixed to the surface of the mounting plate via an annular flange; a second hydraulic cylinder disposed on the top surface of the bracket, its piston rod connected to the mounting plate, for pushing the mounting plate and the drilling machine to slide along the guide rod; and a first hydraulic cylinder inclinedly positioned with its piston rod... The end is rotatably connected to the bracket, used to drive the bracket to rotate around the central axis to adjust the orientation of the drill bit of the drilling machine; the support mechanism includes: a main screw, which is threadedly connected to the base through a main threaded sleeve, and its end is provided with an anti-slip foot; a secondary screw, which is threadedly connected to the base through a secondary threaded sleeve, and its lower end is provided with a pressure-reducing plate, which is used to abut against the reinforcing ring on the bottom surface of the anti-slip foot to lock the distance between the anti-slip foot and the base; and a moving wheel, which is set on the bottom surface of the base and is used to move the base by means of the moving wheel when the main screw and the secondary screw rotate.
[0006] Preferably, a bearing is provided at the connection between the central axis of the bracket and the column.
[0007] Preferably, a linear bearing is provided between the mounting plate and the guide rod.
[0008] Preferably, the end of the piston rod of the first hydraulic cylinder is connected to the bracket via a hinged seat.
[0009] Preferably, both the main screw and the auxiliary screw are provided with a knob at their top ends, and the surface of the knob is provided with anti-slip texture.
[0010] Preferably, the contact surface between the pressure reducing plate and the reinforcing ring is a flat plane.
[0011] Preferably, the movable wheels are omnidirectional wheels with brakes, and there are three of them, each disposed at the bottom of the base.
[0012] Preferably, the combination structure of the main screw and the auxiliary screw of the support mechanism is evenly distributed in four sets along the four corners of the base.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This blasting drilling device features a support frame that is rotatably connected to a column via a central shaft. The first hydraulic cylinder is tilted and drives the support frame to rotate via a hinged seat, enabling the drilling machine to adjust its angle in three-dimensional space. This meets the requirements for complex drilling, such as non-vertical holes and inclined holes, in blasting projects. Meanwhile, the main screw and auxiliary screw combination structure is distributed along the four corners of the base, with four-point support to ensure the base's levelness and prevent drilling tilting due to uneven ground. Furthermore, the auxiliary screw locking mechanism prevents the main screw from retracting under pressure, improving support stability. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;
[0017] Figure 3 This is an exploded view of the support structure of this utility model;
[0018] Figure 4 This is an exploded view of the threaded sleeve structure of this utility model.
[0019] In the diagram: 1. Base; 11. First hydraulic cylinder; 12. Second hydraulic cylinder; 13. Drilling machine; 14. Mounting plate; 15. Bracket; 151. Guide rod; 152. Reinforcing rod; 153. Central shaft; 16. Column; 2. Support mechanism; 21. Main screw; 22. Secondary screw; 23. Anti-slip foot; 24. Caster wheel; 25. Reinforcing ring; 26. Pressure reducing plate; 27. Main threaded sleeve; 28. Secondary threaded sleeve. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1-4 A blasting drilling device includes: a base 1, which distributes the load through support mechanisms 2 distributed at the four corners to avoid local stress concentration, and a column 16 is fixed on its top surface; a bracket 15, which is rotatably connected to the column 16 through a central shaft 153, the column 16 providing a low-friction rotation axis for the bracket 15, and reducing energy consumption with the help of bearings; a guide rod 151 is provided inside the bracket 15, and the brackets 15 are reinforced by reinforcing rods 152 to improve the bending and torsional resistance of the bracket 15 and adapt to drilling impact in hard rock formations; a bearing is provided at the connection between the central shaft 153 of the bracket 15 and the column 16, and a linear bearing is provided between the mounting plate 14 and the guide rod 151.
[0022] Mounting plate 14 is slidably mounted on guide rod 151; drilling machine 13 is fixed to the surface of mounting plate 14 via an annular flange; second hydraulic cylinder 12 is mounted on the top surface of bracket 15, its piston rod is connected to mounting plate 14, and is used to push mounting plate 14 and drilling machine 13 to slide along guide rod 151; first hydraulic cylinder 11 is inclined and its piston rod end is rotatably connected to bracket 15, and is used to drive bracket 15 to rotate around central axis 153 to adjust the orientation of drill bit of drilling machine 13; the end of piston rod of first hydraulic cylinder 11 is connected to bracket 15 via hinge seat.
[0023] The support mechanism 2 includes: a main screw 21, which is threadedly connected to the base 1 via a main threaded sleeve 27, and has an anti-slip foot 23 at its end; and a secondary screw 22, which is threadedly connected to the base 1 via a secondary threaded sleeve 28, and has a pressure-reducing plate 26 at its lower end. The pressure-reducing plate 26 is used to abut against the reinforcing ring 25 on the bottom surface of the anti-slip foot 23 to lock the distance between the anti-slip foot 23 and the base 1. The anti-slip foot 23 contacts the ground, and the reinforcing ring 25 provides a locking point for the secondary screw 22. The reinforcing ring 25 enhances the impact resistance of the anti-slip foot 23 and extends its service life. Both the main screw 21 and the secondary screw 22 have knobs at their top ends. The knob surfaces have anti-slip textures. The contact surface between the pressure-reducing plate 26 and the reinforcing ring 25 is a flat plane. The large contact area of the pressure-reducing plate 26 reduces the unit pressure and lowers the pressure after tightening the secondary screw 22. The combination structure of the main screw 21 and the secondary screw 22 of the support mechanism 2 is evenly distributed in four sets along the four corners of the base 1.
[0024] The movable wheel 24 is set on the bottom surface of the base 1 and is used to move the base 1 via the movable wheel 24 when the main screw 21 and the auxiliary screw 22 rotate. The movable wheel 24 is a universal wheel with brake, and there are three of them, which are respectively set on the bottom of the base 1.
[0025] Working principle: The drilling machine 13 is fixed to the mounting plate 14 via an annular flange on its surface. The mounting plate 14 can slide along the guide rod 151 inside the bracket 15. After activating the second hydraulic cylinder 12 on the top surface of the bracket 15, the mounting plate 14 and the drilling machine 13 can slide downwards, coordinating with the activation of the drilling machine 13 to perform drilling operations. Simultaneously, the bracket 15 is rotatably connected to the column 16 fixed on the top surface of the base 1 via its central shaft 153. Therefore, after activating the tilted first hydraulic cylinder 11, because the end of the piston rod of the first hydraulic cylinder 11 is rotatably connected to the bracket 15, the retraction of the piston rod of the first hydraulic cylinder 11 after activation can push the entire bracket 15 to rotate around the central shaft 153, adjusting the orientation of the bracket 15 and the drill bit of the drilling machine 13, thereby meeting the drilling operation requirements at different angles. Meanwhile, the brackets 15 are connected by reinforcing rods 1... 52. Strengthened connection; support mechanism 2, by rotating the main screw 21 which is threadedly connected to the base 1 using the main threaded sleeve 27, the distance between the anti-slip foot 23 at the end of the main screw 21 and the base 1 can be adjusted, so that the anti-slip foot 23 contacts the ground to provide support. Then, by rotating the auxiliary screw 22 which is threadedly connected to the base 1 using the auxiliary threaded sleeve 28, the pressure reducing plate 26 at the lower end of the auxiliary screw 22 abuts against the reinforcing ring 25 on the bottom surface of the anti-slip foot 23. With the support provided by the auxiliary screw 22, the distance between the anti-slip foot 23 and the base 1 can be locked, which can avoid the influence of the weight of the entire base 1. At the same time, the combination structure of the main screw 21 and the auxiliary screw 22 is set in four places, so that it can be adjusted in sequence to ensure the levelness of the base 1. After rotating the main screw 21 and the auxiliary screw 22, the moving wheel 24 on the bottom surface of the base 1 contacts the ground, so that the moving wheel 24 can be used to move the entire structure, improving flexibility.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A blasting drilling device, characterized in that, include: The base (1) has a column (16) fixed on its top surface; The bracket (15) is rotatably connected to the column (16) via a central shaft (153). The bracket (15) is provided with a guide rod (151) inside, and the brackets (15) are reinforcedly connected to each other by a reinforcing rod (152). Mounting plate (14) is slidably mounted on the guide rod (151); The drilling machine (13) is fixed to the surface of the mounting plate (14) by means of an annular flange; The second hydraulic cylinder (12) is located on the top surface of the bracket (15), and its piston rod is connected to the mounting plate (14) for pushing the mounting plate (14) and the drilling machine (13) to slide along the guide rod (151); The first hydraulic cylinder (11) is inclined and its piston rod end is rotatably connected to the bracket (15), and is used to drive the bracket (15) to rotate around the central axis (153) to adjust the orientation of the drill bit of the drilling machine (13); Supporting structure (2), including: The main screw (21) is threaded to the base (1) through the main thread sleeve (27), and its end is provided with anti-slip feet (23). The auxiliary screw (22) is threaded to the base (1) through the auxiliary threaded sleeve (28), and its lower end is provided with a pressure reducing plate (26). The pressure reducing plate (26) is used to abut against the reinforcing ring (25) on the bottom surface of the anti-slip foot (23) to lock the distance between the anti-slip foot (23) and the base (1). A movable wheel (24) is provided on the bottom surface of the base (1) for moving the base (1) via the movable wheel (24) when the main screw (21) and the auxiliary screw (22) rotate.
2. The blasting drilling device according to claim 1, characterized in that, The central axis (153) of the bracket (15) is provided with a bearing at the connection between the column (16) and the central axis (153).
3. The blasting drilling device according to claim 1, characterized in that, A linear bearing is provided between the mounting plate (14) and the guide rod (151).
4. The blasting drilling device according to claim 1, characterized in that, The end of the piston rod of the first hydraulic cylinder (11) is connected to the bracket (15) via a hinge seat.
5. The blasting drilling device according to claim 1, characterized in that, Both the main screw (21) and the auxiliary screw (22) are provided with knobs at their top ends, and the surfaces of the knobs are provided with anti-slip textures.
6. The blasting drilling device according to claim 1, characterized in that, The contact surface between the pressure reducing plate (26) and the reinforcing ring (25) is a flat plane.
7. The blasting drilling device according to claim 1, characterized in that, The movable wheel (24) is a universal wheel with brakes, and there are three of them, which are respectively set at the bottom of the base (1).
8. The blasting drilling device according to claim 1, characterized in that, The main screw (21) and auxiliary screw (22) of the support mechanism (2) are evenly distributed in four groups along the four corners of the base (1).